Device for applying hot air to parts of the body.



No. 669,087. Patented Mar. 5, |90I. J. G. HOYT.

DEVIGE `FOR APPLYING HOT AIR T0 PARTS OF THE BODY.

(Application fllad May 25, 1900.)

(Na Model.)

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rn STATES PATE Erica.

JOHN CLINTON HOYT, OF RICHMOND, MISSOURI.

SPECIFIGATION forming' part of Letters Patent No. 669,087, dated March5, 1901.

Application filed May 25, 1900.

To ({,ZZ whom it ma]] concern;

Be it known that. I, JOHN OLINTON HoY'r, a citizen of the United States,residing at Richmonci, Ray county, Missouri, have invented a new anduseful Device for Applying Hot Air to Parts of the Body, of which thefollowing is a specification.

My invention relates to devices for making local applications of hot airto external or internal parts of the body; and my object is to provide adevice of this character which is efficient in operation, is of lightweight for convenience of handiing, and possesses the desirable featuresof simplicity and cheapness of construction. I

The in vention consists in certain novel and peculiar features ofconstruction and combinations of parts, as will be hereinafter describedand claimed, and in order that it may be fully understood reference isto be had to the accompanying drawings, in which- Figure 1 represents aside elevation, partly in section, of a device embodying my invention.Fig. 2 is a Vertical longitndinal section, enlarged, of the uozzle ofthe device and the large protecting-tnbe, having a telescopic relationwith the fiexible tube of the nozzle.

Referring to the drawings, 1 designates a heating device, preferably aburner for alcohol because of the latter being chemically pure andadapted for inhalation purposes. Said bnrner is preferably mounted on abase comprising a series of radiating arms 2, terminat-ing in upwardlyand inwardiy projecting spring arms or catches 3, bent to form grooves anear their upper ends.

The fi ne of the heating device is of substantially conical form, andwhile it may be perfectly straight I prefer that it shall extendgenerally at an angle of thirty-five degrees from the Vertical,(indicated by reference-numeral 5,) with its lower end bent to form avertically-depending portion 6, terminating in a flaring or bell month7, stiffened, by preference, at its lower edge by a bead 8, this headbeingadapted to engage the grooves of springarms 3, which latter thusserve to support the fiue in substantially the position shown. Thisfiue, with its large open month and contracted upper discharge end, isconstrncted, preferably, of tin or other sheet metal, as at 9, pro-Serial No. 17,937. (No model.)

vided with a covering of asbestos, as at 10, or other material which isa non-conductor of heat, and serves not only to contine the voiu me ofheat and insu re its pz'tssage up through the fine, but also permits theoperator to handle the device withoutdangerof being burned. The upperend of the fine projects a short distance beyond the upper end of theasbestos coverinrg, as at 11, and fitting thereon is a removable nozzle12,' of the same construction as the fiue, said removable nozzieterminating in a fiexible tube 13, which may for some purposes beprovided with an antiseptic tip 14, as hereinafter referred to.

In practice to accompany each flue there may be a plurality of nozzles12 of varying diameter at their contracted ends and carrying flexibletnbes 13 of different diameters also, the larger tubes to be for thepurpose of spraying hot air against an external part of the body againsta knee, for instance, to drive out a rheumatic pain or against one*sface to drive out pain or start the perspiration, purifying thecomplexion by sweating out the impurities. Another size will be used,preferably, for insertion in the month for lnng treatment, another forinhalation through the nose or for internal application of hot airthrough the ear, and another for treatment of an internal part of thebody, such as an abscess, in which case it may be preferable to providethe flexible tube employed with an antiseptic tip, as hereinbeforestated. For large cavities, where a high degree of heat may be needed, Iprovide an 'outer tube 15 to eliminate chance of burning the walls ofthe cavity. This tube, constructed, preferably, of vulcanized rubber, isformed with cross-pieces 16, having central bearing-holes 17, in which aflexible tube 18 telescopically fits, so that the patient sitting upon achair, if desired, and after the protecting-tnbe is inserted properly inthe cavity can at first introduce the end of the flexible tube only ashort way into the tube 15 and then as danger of being burned decreasesgradually slide such fiexible tube up through the bearingholes into theprotecting-tube and nearer the part being treated, the preferred mannerof accom plishing` this being by grasping the flu'e and moving thedevice as a whole nearer to IOO the operator. By this arrangement itwill be seen that the protecting-tube not only protects the patient frombeing burned, but provides an annular space leading from the parttreated to the external air through which the dead air, accompanied bythe water or other impurities thrown ofi under the treatment, mayescape.

While I have described and shown a particular type of alcohol-burner, itis to be understood that I do not restrict myself to any special type ofburner n01' to any means of supporting the flue l upon and over theburner.

The hot air passing from the burner up through the flue createsa suctionwhich tends to the rapid and forceful passage of the hot air up throughthe flue, and this tendency toward rapid motion is increased asexpansion takes place and as the heat becomes moreintense; also, by thetapering form and contracted upper or discharge end of the flue,

which serves to concentrate and therefore expel the hot airwith greaterforce than would otherwise take place.

From the above description it will be apparent that I have produced adevice of the character described which embodies the features ofadvantage enumerated as desirable in the statement of invention, andwhile I have illustrated and described the preferred embodiment of theinvention I wish it to be understood that various changes in the form,proportion, and detail construction of the parts may be made withoutdeparting :from the spirit and scope or sacrificing any of theadvantages of the invention.

Having thus described the invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A device of the character described, consisting of a Sheet-metal tubeof conical form with its lower or receiving end of large diameter andits discharge or upper end of relatively small diameter, an asbestoscovering for said tube, and a nozzle for said tube, consisting of aSheet-metal portion, an asbestos covering therefor, and a flexibleportion, substantially as described.

2. Adevice of the characterdescribed, comprising a heating device, aconical flue arranged above the heating device and having a large lowerend or month, and a contracted upper end or nozzle, and aprotecting-tube surrounding and fitting telescopically upon thedischarge end or nozzle, said protectingtube being of considerablylarger diameter than said nozzle and providing a conduit orescape-passage for dead air, water and im pu rities thrown off by thebody, substantially as described.

3. A device of the Character described, comprising a heating device, aconical flue supported above the same, and provided with a large lowerend or mouth and a removable upper end or nozzle, having a fleXible-tuheterminal, and a protecting-tube provided with cross-pieces havingopenings fitting slidingly upon the flexible tube, substantially asdescribed.

In testimony whereof I afx my signature in the presence of twowitnesses.

JOHN CLINTON HOYT.

Witnesses:

I-I. O. RoDGERs, G. Y. THORPE.

